Apparatus for the concentration of ores, minerals, &amp;c.



"PM-2mm AUG. 4,

No. 895,363. I I

GB-EENWAY.

RATION 0F GRES, MINERALS, Src, APPLICA rmxr n i J. C. APPARATUS PDR THB CONSENT LED APB.7,1908.

` 3 SHEETS-SHEET l.

n un s u l n .DEF K min-:NTOR

895,363. 4 Y PATBNTBD AUG. 4, 1908.

vJ.(LGMJHWVM. Y APPARMHS'EOR THE CONCENTRATION-0F CRBS, MINERALS, aw.

APPLICATION FILED APR. '1, 1908. l f

3 SHEETS-SHEET 3.

WRTN SSES INVENTOR JOHN c. cREENwAr, or comerme,viumssorrj APPARATUS FOR THE CONCENTRATION O CRES, MINERLS, Snc. I

Y No. soses.

To all wh om it ma y concern:

Be it known that I, JOHN C. GREENWAY, of Coleraine, in the county of Itasca and State ol' Minnesota, have invented e new and useful Improvement in Apparatus for the 'Concentration of' Ores Minerals &c. of

which the following is e full, clear, and exnct description, reference being. had to the accompanying drawings, forming part of this specification, in which-e Figure- 1 isa side elevatlon of one form of apparatus embodyingmy invention; Fig. 2

is a longitudinal vertical section on a. larger scale, and partly broken away; Fig. 3 is e cross section on the line III-III of Fig. 2; Fig. 4 isabot tom plan View of one ofthe sections of which my improved apparatus 'is comprised; Fig. 5 is a. front elevation of the apparatus, and Fig. 6 is e modification in cross section of my invention. u

The object of my invention is to provide n new and improved concentretor'for ores und other materials which is of simple und dureble construct-ion and of efficient operation.

I carry out my invention by roviding a trono-h composed of sections in Wliich the ore Jr otner material is concentrated by series of agitators Whichthresh out the ore and enable a water supply to carry off the substances, such as gengue, sand, clay, etc., from which it is desired to free the ore.

Referring to the drawings, 2 is a trough composed of e. plurality of sect-ions 3, having Vears, by which said sections are bolted toget-her by bolts 5, to form the trough. of the sections 3 hase false bottom 6 which is of.- double trough form, lund which is perforated, as shown at S, enrlis provided with a. .'vater chamber 7, thereunder. allel shafts 9 9', which are suitably journuled et the ends 10 end 11 of the trough, respectively, are positioned longitudinally above said false. bottomsand have puddles or agitators 12 12', radially mounted tlreon. The shafts 9 9 are revolved by the driving shaft 13, through the gear wheel 14, mounted thereon and the gei" wheels 15 15 ositioned on the shafts 9 9' res ectively w lich drive the shafts in opposite directions.

Water is introduced into the chambers 7 preferably by goose-necked pipes 16, which tap the water mein 17 and each of which has an independent. valve 1S, li {means ofvvhieh the water supply for eac section of the trough 'can be 'regulated as desired, The Water, main also hes a regulating valve 19,

Specification of Letters Patent.

Application led April 7, 1908. Serial No. 425,763.

`sired to free it.

The two perand `e gage 20, to show the water. pressure.

Patented Align; 190s. f

The trough 2 slopes slightly from the end 10 to the end 11 to permit the water to carry oll` over the tail-boerd 21 et the end A11.

In operation, the ores or Aother materials to be concentrated are discharged into the trough 2 at 22, or at any other point or points best suited to the ore to be concentrated, and are propelled toward the end 10 by the paddles 12 12', ."hich are .revolved in opposite directions and have their res ective faces opposite-l general s rape and arrangement of propeller bln-des'.` The action of the paddles disintegrates the mess of the ore, working it over and upon \the false bottoms 6, and.. enables the wateruvhich is forced into the chambers I by the ipes` 16 end main 17 under pressure -and whic enters the trough through the erforations 8 frontthe wete-r chambers, to l ow over the 'toil-bodrd or gate. 21, at the lower end 11 of the trough. The discharge ends of the ipes 16 ar preferably located vunder? neat 1 the central `'ort-inn of the false bottom 6, so that the pressiireof the water will be more uniform at both sides of the trough. The water carries witli. it\the lighter substances, such as sand, garrigue, etc., which are present in the ore, und from which it is de- The heavier materials, having a higher specific gravitytlian the substances carrie( oil by the water ere*forced vforward and upward along the incline of the trough by the paddles .1Q 12', to the end 10, end ere discharged in concentrated form turned, andere pre erably of the' through the chute 24. Themen-holes 25 afford access to the water chambers 7, located.

in the various sections, while the. opening 26,

which is ordinarily covered with a cap or plug p or bysome other form of gate valve 27, may also be used to-free fthe chamber from the sediment which may have filtered in through the perforations 8. Y To diminish the agitation of the materials, and thus prevent the lighter ores from being carried over the tail-board with the waste, I

preferebly change the size or engularity or :pitch orboth, of the paddles which are ed- Ja-cent to the end 11 of the trough. This change. can be readily mode ns the paddles 12 12 are adjustably mounted ou the shafts 9 9. I also find that the ore collects at a. greater depth at the discharging end, 10 than at the end 11, and I therefore prefer'gbly em- )lov a stron er ressd 'e und "renter volume of water adjacent 1:0"10 than et 11..; It 'mill be seen that this can readily be done by regulation of the valves.

Ordinarily iron ores when mined vary largely in their mineral content. Often a fixed mineral content is desired in such orcs, and one of the advantages of my invention is that by the revulation of t-lie water pressure by means ol the valves both lean and rich eres, varying widely in their mineral 1g content, r ay be economically treated and a uniform product can be obtained, regardless of the character of the ore introducedinto the trough, since by variation of the ressure and volume of water, a lean ore can e made uniform with a rich one.

In carr ing out my invention, I preferably employ t e form shown in Figs. 1 to 5, but satisfactory results may be obtained from the use of the form shown in Fig'. 6, in which perforations therethrough, a water comparti ment below said bottom from which water l under pressure is admitted through said perl forations, and means for mechanically mov- 235 ing the ore or other material lonritudinally in .one direction in the vessel and lor permitting the water to carry oll' ln suspension the i. gangue and other material in the opposite direction.

40 2. A concentrator for ore and other material, comprising an elongated trough-like ivessel, having a false bottom provided with a multiplicity of small holes or pcrforations which are of reduced diameters at the lower ends, a water compartment below scid bottom, meansl for admit-ting water under controllable head to said compartment, and one or more parallel shafts in said vessel having mounted thereon a .series of paddles for mov` ing the ore or other material longitudinally in one direction. and permitting the water to carry oli in suspension sand, gangue, and other material` in the opposite direction.

"\ 3. A conccntrator, comprising an elongated trough-likc vessel supported in an in- \clined position and formed by a series of connected sections in form of a trough, each sec tion havingr a hollow coinpartmeut in its bottom,` the roof of which compartment is 50 adapted to forni the floor of said trough and' which is perforated to admit water under controllable head independently in each section, with one or more parallel shafts in said vessel having a series ot' paddles mounted 55 then-on and revolving in opposite directions l employ a trough having only one'shat and to move the ore mechanically to the higher end of the trough and deliver the same in devwatered form, and permittinnr the Water to carry o in suspension sani gangue and other material in the opposite.-direetion togetlier with means for admittin water under controllable head to each hol ow compartment.

4. .t corcentrator comprising an elongated "rough-like vessel, having a water compartment 111 its lower port-ion, .such water compartment consisting of one or more independentaections, and provided with means for introducing water under controllable pressure and independently into each sec- `tion, with. perforated bottoms, through .which water is forced, saidbott-oms beinor of a double trough form, and a series of pad( les `arranged to rotate within each portion of said trough to move the ore longitudinally therein in one direction to a point above the level of water, and permitting the sand, gangue and other material to How olf in the opposite direction.

5. A concentrator, comprising a' trough 90 like vessel supported in inclined position, and having a concave perforated false bottom and water compartments below the false bottoni, one or more shafts extending longitiidinally within the vessel above the false bottom, said -shafts having paddles mounted thereon, the paddles atthe lower endof the. vessel ha'ving a greater angularity to the shaft than those at the higher end.

6. An orev concentrator comprising an elongated inclined trough built up of sections bolted together and containing one or more parallel shafts with a series of paddles'mounted thereon; said sections having perforated false bottoms, to admit water into the trough 195 above, together with supply pipes and valves to furnish water under pressure to each section independently 'of the other sections, the sections having a bottom in the form of a h0llow inverted pyramid with 'a valve at bot- 11 tom for drawing olf of sediment, said pipes having goose neck extensions inside of said sections for, tho delivery of water to the eentcr portion of the compartment, and to give uniform pressure and prevent the closing or stoppage of water supply.

7. An ore coneentrator, comprising an clongated trough-like vessel having a water compartaient at its lower portion, means forintro ducing water iimler pressure into said eompartaient, a perforated false bottom through which the water is forced, said false bottom being of a double trough-form, and a series of paddles arranged to rotate within cach portion of'said bottom and to force the material 125 longitudinally therein, and also laterally from the center.

An ore concentrator having,r a trough with a perforated bottom and at least one shaft located therein and having a series of )paddles mounted thereon for moving ore /slowly and with a minimum amount of avitation in the direction of the higher end olthe tremgh, in Combination with a series of inde- 5 pendent Water chambers underneath the perforated bottom of said trough, suitably cont HeCteJWth a water main and a Water supplv direction to the discharging end and therev delivered in (le-watered form together with separate water supply' means for each of said water chambers, with means for regulating the supply to each chamber independently. 9. An ore concentrator, comprlsm an elongated trough-like vessel supported In inehned position, and having a perforated false bottom of double t rough form, a plurality of separate water compartments in the lower portion of the vesse l belowsaid false bott-oms,

separatel;v controlla-ble supply eonneetions for said eompartments, and a series of affita.- tors arranged to operate above the alsemttoms; substantial y as described.

ln testimonv whereof, I have hereunto set my hand.

.JOHN o. GREENWAY:

LYoNs, KENNY. 

